Top Hat

Top Hat is an uncommon head armor that applies a status effect at battle start and increases explosion size. The IncreaseExplosionSize passive makes this a niche but powerful pick for builds that throw bombs, use explosive abilities, or interact with detonation mechanics — bigger blasts mean more damage and wider area coverage. The battle-start status is bonus value on top.

IncreaseExplosionSize scales up the blast radius of any detonation the wearer triggers, which has outsized impact in tight formations where enemies cluster together. A larger explosion catches more targets, multiplying effective damage output without increasing the base damage of the bomb itself. The battle-start status procs automatically at the beginning of every fight, so even against single enemies you are getting some free value from the headpiece. Whether that status is a buff to you or a debuff it applies to an enemy determines how impactful the secondary effect is.

Top Hat is a must-consider for any build centered on bomb items, explosive abilities, or the Bomber class archetype. Pair it with items that spawn or place bombs to maximize how many explosions benefit from the size bonus. Outside of explosion builds, the battle-start status alone is usually not enough to justify the head slot on a non-explosive cat. If your run has multiple explosion-synergy pieces already, Top Hat upgrades all of them simultaneously, making it one of the higher-upside uncommon helmets in the right context.